INDIANAPOLIS – Prosecutors in Indiana have dropped charges against a woman whose murder conviction in her son's 1995 death was overturned, but they say the case isn't closed.

The Indiana Court of Appeals ordered a new trial for Kristine Bunch in March after finding that evidence used to convict her was outdated, weak and wrongly withheld from the defense.

She was released on bond in August, but prosecutors said then that they intended to retry her. Deputy Prosecutor Doug Brown said Tuesday that that is still the case. He says the investigation is still open and his office intends to refile charges.

Prosecutors asked a judge to dismiss the charges Monday, saying their investigation needs more time. The judge granted the motion.